From: Fabian Frederick <fabf@skynet.be>
Date: Tue, 17 Feb 2015 21:46:17 +0000 (-0800)
Subject: fs/affs/super.c: destroy sbi mutex in affs_kill_sb()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4d29e571e1942f8f418bf776af0134a9cb5a35c9;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

fs/affs/super.c: destroy sbi mutex in affs_kill_sb()

Call mutex_destroy() on superblock mutex in affs_kill_sb() otherwise mutex
debugging code isn't able to detect that mutex is used after being freed.
(thanks to Jan Kara for complete definition).

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/affs/super.c b/fs/affs/super.c
index f754ab68a840..ee8eca7add0e 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -602,6 +602,7 @@ static void affs_kill_sb(struct super_block *sb)
 		affs_free_bitmap(sb);
 		affs_brelse(sbi->s_root_bh);
 		kfree(sbi->s_prefix);
+		mutex_destroy(&sbi->s_bmlock);
 		kfree(sbi);
 	}
 }